JP2009275360A - Door stopper device of box body for storage of electric equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door stopper device which can be inexpensively manufactured, which can be easily attached even to a box body for storage of existing electric equipment, and which has proper unlocking operability because it can be attached at a height facilitating operations. <P>SOLUTION: This door stopper device 5 comprises: a stopper 51 which is provided on a hinge pin 43 and turned in synchronization with a door body 3, and in which a locking groove 51d for being locked to a connecting plate portion 41a of a box body side hinge 41 is formed; and a coiled spring 52 which pushes the stopper 51 against the connecting plate portion 41a by urging the stopper 51 in a locking direction. The door stopper device holds the door body 3 in an opened state by making the locking groove 51d of the stopper 51 locked to the connecting plate portion 41a by the urging force of the coiled spring 52 when the door body 3 is opened by a predetermined angle. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a door stopper for holding a door body of an electric equipment storage box used for a distribution board, a control panel, or the like in an open state.

  Electrical equipment storage boxes used for distribution boards, control panels, etc. are operated with the doors open during wiring, inspection, and refurbishment, so the door stopper device holds the doors open. There is something with. In this door stopper device, one end of an arm is pivotally supported by a fixing member provided at the lower end of the box body, and the other end of the arm is inserted into a long hole of a guide plate provided at the lower end of the door body and can slide. When the door body is opened at a predetermined angle, the other end of the arm is locked in the locking hole of the guide lower plate, or the locking piece provided on the arm is detached from the guide plate and becomes the locking portion. By locking, the door body is held in an open state (see, for example, Patent Document 1 and Patent Document 2).

JP 2005-314974 A Japanese Utility Model Publication No. 7-39202

  As described above, the conventional door stopper device has a large number of parts for constituting a fixing member, an arm, a guide plate, and the like, so that the cost is high. In addition, since the fixing member and the guide plate are attached by welding, the existing electric device is accommodated. It could not be attached to the box. Also, since the door stopper device is installed at the lower end of the electrical equipment storage box, it is necessary to squat and manually operate to release the door stopper device. There was a drawback of poor nature.

  The present invention includes a box body having an opening on the front surface, a door that covers the opening of the box body, a box-side hinge provided on one end side of the opening of the box body, and a box side A box body hinge having a door body side hinge provided at one end of the door body facing the hinge, and a hinge pin inserted through the hinge pin insertion hole of the box side hinge and the hinge pin insertion hole of the door body side hinge; In the door stopper device of the electrical equipment storage box that holds the door that can be freely opened and closed on the main body, it is provided on the hinge pin and rotates in conjunction with the door to connect the hinge on the box A stopper formed with a locking groove for locking to the plate portion and an elastic body for biasing the stopper in the locking direction, and the stopper locking groove by the biasing force of the elastic body at a position where the door body is opened at a predetermined angle. Is locked to the connecting plate portion of the box-side hinge and holds the door in an open state.

  According to the present invention, since it is composed of a small number of parts, it can be manufactured at low cost, and even an existing electrical equipment storage box can be easily attached. Further, since the door stopper device can be attached to a hinge that is easy to work, there is an effect that the door body locking release operability is good.

  The door stopper device is provided on the hinge pin and rotates in conjunction with the door body. The door stopper device is formed with a locking groove for locking to the connecting plate portion of the box side hinge, and the stopper is biased in the locking direction. Then, the coil spring is configured to press the stopper against the connecting plate portion. When the door body is opened at a predetermined angle, the latching groove of the stopper is locked to the connecting plate portion by the biasing force of the coil spring, and the door body is held open.

  A first embodiment of a door stopper device for an electrical equipment storage box according to the present invention will be described with reference to the accompanying drawings of FIGS.

  An electric equipment storage box 1 includes a box body 2 having an opening 2a on the front surface, a door 3 that covers the opening of the box body 2, and a door 3 that can be opened and closed freely. A hinge 4 to be hinged and a door stopper device 5 provided on the hinge 4 to hold the door body 3 in an open state are provided.

  The hinge 4 is opposed to the box-side hinge 41 and a pair of box-side hinges 41 provided on the edge of the opening 2a of the box body 2 via the connecting plate portion 41a with a space therebetween in the vertical direction. A door body side hinge 42 provided at an edge of the door body 3, a hinge pin 43 provided through the hinge pin insertion hole 41b of the box side hinge 41 and the hinge pin insertion hole 42b of the door side hinge 42; The E-ring 44 is provided at the tip for preventing the hinge pin 43 from coming off.

  The box body 2 is formed by bending the entire periphery of the opening 2a in the inner direction, and further bending outward in a substantially U-shaped cross section to prevent intrusion of rainwater into the box body 2 2b is formed, and the door 3 is formed with a bent portion 3b so as to cover the draining portion 2b of the box body 2 by bending the entire circumference of the front plate portion 3a. The box-side hinge 41 is welded to the edge of the draining portion 2b of the box body 2, and the door-side hinge 42 is welded in contact with both inner side surfaces of the front plate portion 3a and the bent portion 3b of the door body 3. The hinge 4 is provided at three positions, that is, an upper end portion, a lower end portion, and an intermediate portion of the opening 2a of the box body 2, and supports the door body 3 so as to be freely opened and closed.

  The door stopper device 5 is provided at the tip of the hinge pin 43 and rotates in conjunction with the door body 3 to form a stopper 51 formed with a locking groove 51d for locking to the connecting plate portion 41a of the box side hinge 41. The coil spring 52 is provided at the base end of the hinge pin 43 and urges the stopper 51 in the locking direction to press the stopper 51 against the connecting plate portion 41a.

  The stopper 51 has a substantially arc-shaped protruding piece 51c erected at the upper end edge of the mounting portion 51a in which the insertion hole 51b through which the hinge pin 43 is inserted. The protruding piece 51c has a locking groove 51d at the upper end and a connecting plate portion 41a. An inclined portion 51e for guiding the above is formed. The attachment portion 51a is formed with a rotation preventing portion 51f that abuts against both inner side surfaces of the front plate portion 3a and the bent portion 3b of the door body 3 to prevent the stopper 51 from slipping.

  In order to assemble the door stopper device 5 formed in this way to the hinge 4, the position is adjusted so that the hinge pin insertion hole 41b of the box side hinge 41 and the hinge pin insertion hole 42b of the door side hinge 42 coincide with each other, The hinge pin 43 is inserted through the coil spring 52 and is inserted in order through the hinge pin insertion hole 41b of the box side hinge 41, the hinge pin insertion hole 42b of the door side hinge 42, and the hinge pin insertion hole 41b of the box side hinge 41. Then, the stopper 51 is attached by inserting the hinge pin 43 through the insertion hole 51b of the stopper 51 so that the rotation preventing portion 51f is in contact with both inner side surfaces of the front plate portion 3a and the bent portion 3b of the door body 3. The door stopper device 5 is assembled by fitting the E ring 44 into the groove 43a at the tip of 43 to prevent it from coming off.

  The electrical equipment storage box 1 to which the door stopper device 5 is assembled is locked and held by the door stopper device 5 at a position of a predetermined angle simply by opening the door body 3 from the closed state. Specifically, when the door 3 is closed, the mounting portion 51 a of the stopper 51 is pressed against the lower end of the box-side hinge 41 by the biasing force of the coil spring 52. Here, when the door body 3 is opened, the rotation preventing portion 51f of the stopper 51 abuts on the inner surface of the bent portion 3b of the door body 3, and the stopper 51 is interlocked with the rotation of the door body 3, and the box side hinge 41 is moved. The inclined portion 51e of the stopper 51 contacts the connecting plate portion 41a. Therefore, when the door body 3 is further opened, the coil spring 52 is compressed and the inclined portion 51e of the stopper 51 rides on the connecting plate portion 41a. Further, the door body 3 is opened and the door body 3 is 90 degrees with respect to the box body 2. When the door plate 3 is opened to the extent that the engaging groove 51d of the stopper 51 is fitted into the connecting plate portion 41a, the door body 3 is held open.

  Moreover, in order to cancel | release holding | maintenance of the door body 3 by the door stopper apparatus 5, it pushes the base end of the hinge pin 43 with a finger | toe, and closes the door body 3 for a while. When the hinge pin 43 is pushed down, the locking groove 51d of the stopper 51 is detached from the connecting plate portion 41a of the box side hinge 41, and the door body 3 is slightly blocked while the hinge pin 43 is pushed down to prevent the stopper 51 from rotating. The portion 51f abuts against the inner surface of the front plate portion 3a of the door body 3, the stopper 51 is interlocked with the rotation of the door body 3, and the locking groove 51d of the stopper 51 is connected to the connecting plate portion 41a of the box side hinge 41. Since the position shifts, the lock is released. Thus, the door body 3 can be closed after releasing the holding by the door stopper device 5.

  The door stopper device 5 is assembled to the hinge 4 provided at the intermediate portion among the hinges 4 provided at the upper end portion, the lower end portion, and the intermediate portion of the opening 2a of the box body 2. It is not necessary to squat when unlocking the door body 3 due to the above, and the operability is improved. Further, since the door stopper device 5 is configured with a small number of parts, it can be manufactured at a low cost, and since it is assembled to the hinge 4, it can be easily assembled to the existing electrical equipment storage box 1.

  In the present embodiment, the locking groove 51d of the stopper 51 is locked to the connecting plate portion 41a when the door body 3 is opened about 90 degrees. It is possible to change the opening holding angle of the door body 3 by changing the formation position, and to form a plurality of locking grooves 51d so that the opening holding angle can be selected. Further, the stopper 51 is formed in such a shape that the hinge pin 43 is inserted through the insertion hole 51b of the disk-shaped mounting portion 51a, but a notch 43b is formed at the tip of the hinge pin 43 as shown in FIGS. The stopper 51 mounting portion 51a is formed in a plate shape so as to be inserted into the notch 43b of the hinge pin 43, and a horizontal drop-off preventing notch 51g is formed on the upper portion. There is no problem even if the shape of the stopper 51 and the hinge pin 43 is changed, such as a shape to be inserted and attached, and the E-ring 44 is attached to the tip of the hinge pin 43 to prevent it from coming off. The E-ring 44 is formed by assembling the stopper 51 so as not to be easily detached from the hinge pin 43, for example, by engaging the stopper 51 with the groove 43a of 43. Can be substituted, it is possible to reduce the number of parts is omitted E ring 44. Further, although the coil spring 52 is provided at the base end of the hinge pin 43 as an elastic body that biases the stopper 51 in the locking direction, the coil spring 52 is not limited to the coil spring 52, and is formed of, for example, rubber, a leaf spring, or a resin component. It is sufficient that the stopper 51 is elastically biased in the locking direction, and the elastic body only has to be able to bias the stopper 51 in the locking direction at the mounting position. It may be between the rings 44.

It is a perspective view which shows the box for electrical equipment accommodation which concerns on this invention. It is a disassembled perspective view which shows the hinge part and door stopper apparatus of the box for electrical equipment accommodation. It is a perspective view which shows a stopper. It is a perspective view which shows the state which assembled | attached the door stopper apparatus to the hinge and opened the door body. The state which closed the door body is shown, (a) is the cross-sectional view of a hinge part, (b) is the longitudinal cross-sectional view which fractured | ruptured (a) in the connection board part and looked at the hinge. The door is opened about half way and the protrusion of the stopper rides on the connecting plate part. (A) is a cross-sectional view of the hinge part. (B) is a broken view of (a) at the connecting plate part. FIG. The state where the door is opened and the locking groove of the stopper is locked to the connecting plate part is shown. (A) is a cross-sectional view of the hinge part, (b) is a broken view of (a) at the connecting plate part. FIG. It is a disassembled perspective view which shows the modification example of the hinge part of the box for electrical equipment accommodation, and a door stopper apparatus. It is a perspective view which shows the deformation | transformation Example of a stopper. It is a perspective view which shows the state which assembled | attached the door stopper apparatus of FIG. 8 to the hinge, and opened the door body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electrical equipment storage box 2 Box body 2a Opening 3 Door 4 Hinge 41 Box side hinge 41a Connecting plate part 42 Door side hinge 43 Hinge pin 5 Door stopper device 51 Stopper 51a Mounting part 51b Insertion hole 51c Projection piece 51d Locking groove 51e Inclined portion 51f Non-rotating portion 52 Coil spring

Claims (1)

  A box body having an opening on the front surface, a door for covering the opening of the box body, a box-side hinge provided on an edge of the opening of the box body, and the box side The door body of an electrical equipment storage box comprising a hinge pin that is inserted into a hinge on a door body provided at an edge of the door body opposite to the hinge and that allows the door body to be opened and closed by the box body. In the door stopper device for the electrical equipment storage box that holds the door in an open state, the hinge pin is provided on the hinge pin and rotates in conjunction with the opening and closing operation of the door, and is locked to the connecting plate portion of the hinge on the box side The stopper is formed with a stopper groove and an elastic body that urges the stopper in the locking direction, and the stopper groove by the urging force of the elastic body at a position where the door body is opened at a predetermined angle. An electric device package, wherein the door body is held in an open state by being locked to a connecting plate portion of the box-side hinge. Door stopper device in use box body.

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